Madrera Mayor, Eduardo, Andrés Garrido González, and Luis Esteban González. “La formación De Profesionales De Las Actividades físico-Deportivas En La enseñanza No-Universitaria (Teaching Professionals of Sports and Physical Activities of Non-Degree Education)”. Retos 27 (January 1, 2015): 152–158. Accessed September 22, 2025. http://207.180.252.49/index.php/retos/article/view/34369.